Re:Ask HN: How to Master Linux?
by CyberFonic on Sunday January 19, 2020 @03:25AM
(#22090183)
The "Unix Philosophy" section is solid gold. With those principles in mind many other aspects suddenly make sense. Might be a good idea to keep that page bookmarked and return back to it, often.
The art of unix programming is a good book to get your bearings: http://catb.org/~esr/writings/taoup/html/
Then learn a shell like bash, zsh, or fish thoroughly. A scripting language like Python can’t hurt. Building a custom kernel and toolchain is a fun process as well.
That’s plenty to get started. Good luck. ;-)